Index: polymer_1.0.4/bower_components/iron-list/test/mutations.html |
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+<!doctype html> |
+<!-- |
+@license |
+Copyright (c) 2015 The Polymer Project Authors. All rights reserved. |
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE |
+The complete set of authors may be found at http://polymer.github.io/AUTHORS |
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS |
+Code distributed by Google as part of the polymer project is also |
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS |
+--> |
+<html> |
+<head> |
+ <meta charset="UTF-8"> |
+ <title>iron-list test</title> |
+ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0"> |
+ |
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script> |
+ <script src="../../web-component-tester/browser.js"></script> |
+ <script src="../../test-fixture/test-fixture-mocha.js"></script> |
+ |
+ <link rel="import" href="helpers.html"> |
+ <link rel="import" href="../../test-fixture/test-fixture.html"> |
+ <link rel="import" href="../iron-list.html"> |
+</head> |
+<body> |
+ |
+ <test-fixture id="trivialList"> |
+ <template> |
+ <template is="dom-bind"> |
+ <style> |
+ :host { |
+ @apply(--layout-fit); |
+ @apply(--layout-vertical); |
+ |
+ display: block; |
+ } |
+ |
+ iron-list { |
+ height: 300px; |
+ } |
+ |
+ .item:nth-child(odd) { |
+ height: 100px; |
+ background-color: green; |
+ color: white; |
+ } |
+ |
+ .item:nth-child(even) { |
+ height: 100px; |
+ background-color: red; |
+ color: white; |
+ } |
+ </style> |
+ <iron-list items="[[data]]" as="item"> |
+ <template> |
+ <div class="item">[[item.index]]</div> |
+ </template> |
+ </iron-list> |
+ </template> |
+ </template> |
+ </test-fixture> |
+ |
+ <script> |
+ |
+ suite('mutations to items', function() { |
+ var list, container; |
+ |
+ setup(function() { |
+ container = fixture('trivialList'); |
+ list = findElementInList(container, 'iron-list'); |
+ }); |
+ |
+ test('update physical item', function(done) { |
+ var setSize = 100; |
+ var phrase = 'It works!'; |
+ |
+ list.items = buildDataSet(setSize); |
+ |
+ list.set('items.0.index', phrase); |
+ |
+ flush(function() { |
+ assert.equal(getFirstItemFromList(list).textContent, phrase); |
+ done(); |
+ }); |
+ }); |
+ |
+ test('update virtual item', function(done) { |
+ var setSize = 100; |
+ var phrase = 'It works!'; |
+ |
+ list.items = buildDataSet(setSize); |
+ |
+ function scrollBackUp() { |
+ simulateScroll({ |
+ list: list, |
+ contribution: 100, |
+ target: 0 |
+ }, function() { |
+ flush(function() { |
+ assert.equal(getFirstItemFromList(list).textContent, phrase); |
+ done(); |
+ }); |
+ }); |
+ } |
+ |
+ flush(function() { |
+ var rowHeight = list._physicalItems[0].offsetHeight; |
+ // scroll down |
+ simulateScroll({ |
+ list: list, |
+ contribution: 100, |
+ target: setSize*rowHeight |
+ }, function() { |
+ list.set('items.0.index', phrase); |
+ flush(scrollBackUp); |
+ }); |
+ }); |
+ }); |
+ |
+ test('push', function(done) { |
+ var setSize = 100; |
+ |
+ list.items = buildDataSet(setSize); |
+ setSize = list.items.length; |
+ |
+ list.push('items', buildItem(setSize)); |
+ assert.equal(list.items.length, setSize + 1); |
+ |
+ flush(function() { |
+ var rowHeight = list._physicalItems[0].offsetHeight; |
+ var viewportHeight = list.offsetHeight; |
+ var itemsPerViewport = Math.floor(viewportHeight/rowHeight); |
+ |
+ assert.equal(getFirstItemFromList(list).textContent, 0); |
+ |
+ simulateScroll({ |
+ list: list, |
+ contribution: rowHeight, |
+ target: list.items.length*rowHeight |
+ }, function() { |
+ assert.equal(getFirstItemFromList(list).textContent, |
+ list.items.length - itemsPerViewport); |
+ done(); |
+ }); |
+ }) |
+ }); |
+ |
+ test('pop', function(done) { |
+ var setSize = 100; |
+ list.items = buildDataSet(setSize); |
+ |
+ flush(function() { |
+ var rowHeight = list._physicalItems[0].offsetHeight; |
+ |
+ simulateScroll({ |
+ list: list, |
+ contribution: rowHeight, |
+ target: setSize*rowHeight |
+ }, function() { |
+ var viewportHeight = list.offsetHeight; |
+ var itemsPerViewport = Math.floor(viewportHeight/rowHeight); |
+ |
+ list.pop('items'); |
+ |
+ flush(function() { |
+ assert.equal(list.items.length, setSize-1); |
+ assert.equal(getFirstItemFromList(list).textContent, setSize - 3 - 1); |
+ done(); |
+ }); |
+ }); |
+ }); |
+ }); |
+ |
+ test('splice', function(done) { |
+ var setSize = 45; |
+ var phrase = 'It works!' |
+ list.items = buildDataSet(setSize); |
+ |
+ list.splice('items', 0, setSize, buildItem(phrase)); |
+ |
+ flush(function() { |
+ assert.equal(list.items.length, 1); |
+ assert.equal(getFirstItemFromList(list).textContent, phrase); |
+ done(); |
+ }); |
+ }); |
+ }); |
+ </script> |
+ |
+</body> |
+</html> |